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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>验证码</title>
    <link rel="stylesheet" href="http://193.112.178.201/bootstrap/css/bootstrap.min.css">
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                <div class="card border-secondary mb-3">
                    <div class="card-header">验证邮箱地址</div>
                    <div class="card-body text-secondary">
                        <h5 class="card-title">753280878@qq.com</h5>
                        <p class="card-text">你正在进行<a href="http://193.112.178.201">Attendance</a>应用的<b>注册操作</b>。</p>
                        <p class="card-text">您的验证码是：</p>
                        <div class="py-4"
                            style="display: flex;justify-content: center;background-color: #1a1d2076; border: 1px solid #343a4031; border-radius: 8px;">
                            <div style="width: 60%;text-align: center;">
                                <span class="card-text"
                                    style="font-size: 38px;letter-spacing: 4.5px;padding: 10px;
                                border-radius: 8px;color: #ffffff;box-shadow: inset 0px -32px 38px -16px rgba(0,0,0,0.1);">123456</span>
                            </div>
                        </div>
                        <p class="card-text mt-2">有效时间15分钟，请在验证码输入框中输入上述验证码，以完成<a href="http://193.112.178.201">Attendance</a>应用账号注册。</p>
                    </div>
                    <div class="card-footer">
                        此为系统邮件，请勿回复。如有任何疑问，请联系<span> 18566207008</span> 。感谢您的使用！
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